Gas-heater.



W. C. FISCHER.

GAS HEATER.

APPLICATION FILED JAN. l9. I9l6.

1,226,964. j Patented May 22,1917;

INVENTOR MZZIZIMCH'JM er- 5 B M f mi UNITED STATES PATENT OFFICE.

WILLIAM C. FISCHER, OF NEW YORK, N. Y., ASSIGNOR TO THE COMPOUND HEATER MFG. COMPANY, INC., A CORPORATION OF NEW YORK.

v GAS-HEATER.

To all whom it may concern:

,Be it known that 1, WILLIAM C. Freeman, a citizen of the United States, and a resident of New York, in the county of New York and State of New York have invented certain new and useful Improvements in Gras- Heaters, of which the following is a specification.

My invention relates to the construction and operation of gas-heaters of that type in which a heat-radiating drum or chamber is supported above a gas flame'and adapted to receive the heat therefrom.

The object of the invention is to increase the efliciency of gas-heaters of this type and to secure a more thorough distribution of the heated air. By a construction according to this invention the heated air is more effectively scattered or thrown around the room in which the heater is located than is true in the case of the ordinary construction in which the air in a hollow drum or chamber ismerely heated as so much dead air. 'The invention consists in the improved construction of gas-heater hereinafter more particularly described and then specified-1n the claims.

In the accompanying drawings, Figure 1 is a vertical central cross-section through a gas-heater constructed in accordance with this invention, parts being shown in elevation.

prlslng preferably an upper dome shaped man plate 2 and a lower reversely arranged dome-shaped part 3 having a central opening 4 which is centrally located over the gas jet. The parts 2 and 3 are formed of thin sheet metal and joined together around their meeting edges 5 in any 'd e'sired manner. The upper plate 2 is providedwith aplura-lity of perforations 6. The part3 is provided wit' an annular outwardly flaring skirt? depending around the opening 4. The skirt 7 serves to collect the heat from the gas flame and direct it toward the interior of the chamber 1.

In the arrangement shown in Fig. 1 the Specification of Letters Patent.

Patented May 22, 1917.

Application filed January 19, 1918. Serial No. 72,902.

chamber is supported at some distance above the' gas jet 8 (shown in dotted lines) by spider-like arms 9' radiating from a thimble or sleeve 1.0 adapted to fit snugly around the gas jet. The ends of the arms 9 terminate in claws 11 which engage and grip the free edge of the flaring skirt 7.

12 indicates a second heat-radiating metal plate preferably approximately concentric in shapewith the dome'shaped upper part 2 of the chamber 1. The plate 12 is provided with perforations 13 distributed about its surface and smaller in diameter than the perforations 6 in the chamber. The plate 12 is supported at some distance above the chamberby posts 14 secured to the outer edge of the chamber as shown.

15 indicates a vertical shaft or spindle centrally arranged with respect to the chamber 1 and loosely passing through openings in the plates 12 and 2 so that said shaft may freely swivel or swing. The shaft 15 is freelysuspended on a ball-race 16 secured to the upper surface of the plate 12 by a collar 17 fixed to the shaft. The collar 17 has a chamfered or beveled under surface indicated at 30 upon which the shaft may rock or swivel to allow for any inaccuracy in mounting the heater. The lower end of the shaft projects into the space within the chamber 1 and this end is provided with a fan 18 of any suitable type, the one shown being. horizontally arranged and provided with the usual blades radiating fromthe hub which is fixed to the shaft 15. The fan 18 comes directly over the flame of the gas jet 8 and the currents of heated air from the flame rotate the fan whichthrowsthe heated air against the walls of the chamber land through the perforations 6. The heated air is thus distributed about the room and some of it goes up against and through the plate 12 which itself thenbecpm'es a source of radiating heat.- I 1 j a By having the chamber supported some distance fromthe gas 'fl-aine theff-an secures" the full benefit of the force-of the heated air and rotates: easily and quietly owing to its free suspension on the ball-race16 and at the same time the illuminating 'efiectbf the flame is maintained.

To prevent the fan 18 rising vertically in shipment or manipulation or due to too great a forceof heat whereby the balls in the ball-race 16 might become lost or the parts damaged, I provide a stop preferably in the form of a collar or sleeve 19 preferably loosely surrounding the shaft 15 and occupying the space between the hub of the fan and the under surface of the plate 2 around the shaft opening.

Referring to Figs. 2 and 3, means for supporting the heater whereby its position above the flame may be adjusted as well as to locate it centrally over the flame are shown. 20 indicates the gas pipe to which the gas jet is secured. .This pipe maybe vertical or horizontal or'of any other disposition, the adjustable clamp shown operating the same irrespective of the position of the pipe. In the arrangement shown it is assumed to be vertical for the purpose of illustration.

21 indicates a metal strip having each end bentlaterally in the same direction to form cars 22 and 23. A portion 24 of the strip between the ears 22 and 23 is concaved to fit ap roximately one-half the total periphery 0 the pipe 20. A concave cap 25 fits the opposite surface of the pipe and clamps the-pipe to the strip by screws 26'.

The ears 22 and 23 are each provided with a round hole alined with each other and through which a rod 27 loosely passes. The rod 27 may run straight from the pipe 20 or be bent in any desired manner and is provided on one end with a hook 28 which engages an eye 29 secured to the plate 12 of he heater and by which the heater is suspended. The rod 27 is secured in adjusted position to the plate by an eye 30 encircling the rod and provided with a threaded shank 31 passing through a hole in the strip 21. The outer end of the shank is provided with a nut 32 which bears against the surface of the strip 21 and draws the rod '27 tight against the walls of the holes in the ears 22 and 23 thus locking the rod in. place. By this arrangement any adjustment of the position of the heater may be made and it can be supported from vertical, horizontal orany other line of pipe.

Itwill be understood that my invention is not limited to the details of construction or arrangement of parts as herein shown and described except as may be specified in the appended claims.

'It-w-illbe understood that the term gas flame is used broadly to include mg lighting.; .iiame derived from any of e well known soarcesgsuch as gas, oil, gasolene, What .lmlaim as my invention gas heater "comprising a perforated will may he 11. t m ca a s4 7 v i Willi; gum- 3,,q u

I f p 1 f1 f. heat radiating chamber, a fan fr fy g,

pended in said chamber from an overhead.

support and adapted to be romaa wma ascending currents of heated air and thereby throw the heated air against the walls of said chamber and through the perforations thereof, a perforated dome-sha ed r adiating plate supported above said'cfiafiiber and a fiaring skirt depending from said chamber to collect the heated currents of air and direct them to said fan.

2. A gasheater compriSing a perforated heat-radiating chamber, a heat-radiating plate concentric with the upper surface of said chamber and supported thereby, afan within said chamber adapted to be rotated by the currents of heated air, a shaft suspended from the upper heat-radiatingplate and to which said fan is secured, a sleeve on said shaft adapted to prevent vertical mov ement of said, fan and a skirt depending from the bottom of said chamber to collect the heated air and direct it to said fan.

3. A gas heater comprising a perforated chamber having an opening in thebottom, an outwardly flaring skirt depending from said opening, a dome-shaped radiating plate spaced above the said chamber, posts rising from said chamber and supporting said plate, a freely mounted shaft suspended from said dome-shaped plate and projecting into said chamber, a fan secured to said shaft within said chamber and adapted .to be rotated by currents of heated air and means on said shaft to prevent said fan rising vertically. 3

4. A gas-heater comprising a perforated chamber having an opening in .the hottcm and adapted to be supported ajbe'vea gas flame, a dome-shaped radiating plate.jsuppa above th top f said hamb rapsa freely mounted shaft suspended-from said do haped rad ating plate a d proj cting into said chamber, a fan secured to of s d shaf Within sa d rchamhelri a adapted'to be rotated by currents of heated air from the gas iflame, a ballrace. oilwhich said shafift issu'ppo'rted and a sleeveor'collar on-said shaft to prevent said fan vertically: Si ed at New York, the county. 50f New%o rk and State I of New York, this 13thv day of January, A. Ila-1 916. WILLIAM C. FISCHER; W nes e L mm eB. ilownsaan. 

